2645e5c175282ee9131164c5854d28886f740c9d59e2e97924eae897959f0019

Analysis

max time kernel
150s
max time network
153s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
09/06/2024, 20:53

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General

Target

2024-06-09_cd4482f1866ff8930da7fff8edaa3a7e_cryptolocker.exe
Size

37KB
MD5

cd4482f1866ff8930da7fff8edaa3a7e
SHA1

9171bbedd0ce4a0c2a13974d51d19eb024acd5f9
SHA256

2645e5c175282ee9131164c5854d28886f740c9d59e2e97924eae897959f0019
SHA512

93ff590de1df8bb597a1e3011c3997e2cf648a95ec3af7633011606d073e430e50d9eb70529714e2b6873ec5b02584499766c299b064006238d1002522ce1bd5
SSDEEP

768:Kf1K2exg2kBwtdgI2MyzNORQtOflIwoHNV2XBFV72BOlA7ZsBGGp/YIm7wm0Upc:o1KhxqwtdgI2MyzNORQtOflIwoHNV2Xh

Score

9^/10

Malware Config

Signatures

Detection of CryptoLocker Variants 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000015c5d-22.dat	CryptoLocker_rule2

Detection of Cryptolocker Samples 1 IoCs

resource	yara_rule
behavioral1/files/0x0009000000015c5d-22.dat	CryptoLocker_set1

Executes dropped EXE 1 IoCs

pid	Process
2716	hurok.exe

Loads dropped DLL 1 IoCs

pid	Process
2244	2024-06-09_cd4482f1866ff8930da7fff8edaa3a7e_cryptolocker.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2244	2024-06-09_cd4482f1866ff8930da7fff8edaa3a7e_cryptolocker.exe
2716	hurok.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2244 wrote to memory of 2716	2244	2024-06-09_cd4482f1866ff8930da7fff8edaa3a7e_cryptolocker.exe	28
PID 2244 wrote to memory of 2716	2244	2024-06-09_cd4482f1866ff8930da7fff8edaa3a7e_cryptolocker.exe	28
PID 2244 wrote to memory of 2716	2244	2024-06-09_cd4482f1866ff8930da7fff8edaa3a7e_cryptolocker.exe	28
PID 2244 wrote to memory of 2716	2244	2024-06-09_cd4482f1866ff8930da7fff8edaa3a7e_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-06-09_cd4482f1866ff8930da7fff8edaa3a7e_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-06-09_cd4482f1866ff8930da7fff8edaa3a7e_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2244
- C:\Users\Admin\AppData\Local\Temp\hurok.exe
  "C:\Users\Admin\AppData\Local\Temp\hurok.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of UnmapMainImage
  PID:2716

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\hurok.exe

Filesize
38KB

MD5
6295fc95ea4705423e1fb94dd65d45ef

SHA1
a4df28517af6f07020c79dd73b01d2b1b971a62b

SHA256
7cd459cfb53a71ca3f34a10cab97e50d0c86f3014ed6d13ab4062b4bbb1ade1f

SHA512
ea82cc2b55f9be2c6a3cd94a7c9a359f25830e324642ec03024fa5f2647927efc769f1b8e418961b974c1de03598fb344cc1c0fcb1960cbf83420cc12d711396

Download Submit
memory/2244-8-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2244-1-0x0000000000400000-0x0000000000406000-memory.dmp

Filesize
24KB

Download
memory/2244-0-0x0000000000310000-0x0000000000316000-memory.dmp

Filesize
24KB

Download
memory/2716-23-0x0000000000230000-0x0000000000236000-memory.dmp

Filesize
24KB

Download